Across
- 7. The letter of the element
- 8. The number of atoms that a molecule has.
- 10. Bulding blocks of matter
- 11. The number of Protons
- 12. Have a neutral charge
Down
- 1. Were all the elements are
- 2. Are made up of atoms
- 3. The bottom number of an element
- 4. Have a positive charge
- 5. The things that fill the Periodic Table
- 6. Have a negative charge
- 9. The organizer of the periodic table